<div class="markdown-vis-options form-group">
  <div>
    <label>Markdown</label>
    <small class="pull-right"><a target="_window" href="https://help.github.com/articles/github-flavored-markdown/">Help <i aria-hidden="true" class="fa fa-link"></i></a></small>
  </div>
  <textarea ng-model="vis.params.markdown" class="form-control" rows="20"></textarea>
</div>